Medium Voltage Soft Starter HRVS - DN HRVS-DN. Catalog 2008/ / V1.7 USA

Transcription

1 Medium Voltage Soft Starter HRVS - DN HRVS-DN Catalog 2008/2009

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3 Medium Voltage Soft Starter HRVS-DN Catalog Overview... 1 Why soft starters?... 1 HRVS-DN - Setting a new standard... 1 HRVS-DN - Application experience... 2 How soft starters work... 3 Starting and Stopping Characteristics... 3 Initial voltage... 3 Current limit... 3 Acceleration (ramp-up time)... 4 Deceleration - soft stop (ramp-down time)... 4 Pulse start (kick start)... 4 Dual adjustment... 4 Diesel generator starting... 4 Pump control - Start curves... 5 Pump control - Stop curves Product Design... 6 Standard HRVS-DN soft starter design... 6 High-voltage compartment... 6 Low-voltage compartment... 7 Operator panel... 7 MV OEM chassis kit... 8 Custom lineups and special designs Specifications General specifi cations Motor and starter protection Product Selection Selection & ordering data Standard scope of supply Available options Application information Standard ratings and dimensions FAQs Wiring Diagrams & Dimensional Drawings Wiring diagram Block diagram Dimensional drawings... 18

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5 1. Overview Why Soft Starters? Three-phase AC induction motors are commonly used in a wide variety of industrial applications. Due to their starting characteristics, in many cases these motors cannot be connected directly to the power supply system. When starting direct on line (DOL) the motor can see a very high surge current reaching up to 6 times the rated motor current. This excessive current puts stress on the supply system and the switchgear. Also, when starting direct on line, a very high peak torque can occur stressing the driven motor, the mechanical system including auxiliary power transmission parts (V-belt, gears, etc.). There are several methods for reducing the damaging effects of this excessive starting current. Conventional methods include reactors and autotransformers. But these methods only allow the voltage to be reduced in steps whereas a soft starter provides step-free acceleration of the drive system by continuously increasing the voltage over a selected period of time. This approach to starting minimizes the effect of high inrush current on the supply system, the motor and the driven load. Soft starters provide the following benefi ts: Reduced starting current eliminates voltage drops and dips of the supply network Smoother acceleration of loads eliminates process or product damage Extended lifetime of all mechanical components, e.g. eliminating gearbox damage and resulting in less maintenance and downtime Extended motor life Reduced maintenance and operating costs HRVS-DN Enclosure Type IP31 (NEMA1 equivalent) closed view HRVS-DN - Setting a New Standard The HRVS-DN is an innovative product that provides a fl exible, low cost alternative to fi xed speed (DOL) starting. Designed for use with standard medium voltage three-phase squirrel cage induction motors, this high-performance digital soft starter ensures smooth acceleration and deceleration. HRVS-DN is available in all standard internationally recognized medium voltage ratings: 2.3 kv, 3.3 kv, 4.16 kv, 6 kv and 6.6 kv, 10kV, 11kV, 13.8kV and 15kV. The standard current output range capability is from A (200 kw to 50 MW). HRVS-DN is designed and built to meet international standards including: IEC EN DIN VDE NEMA UL/CUL IEEE The HRVS-DN soft starters are manufactured to the highest quality level. The entire design, production and delivery process has been certifi ed DIN ISO The enclosed versions of the HRVS-DN are provided as ready-to-connect cabinet enclosed type units (shown in Figures 1 and 2) or - for OEMs only - chassis type OEM kits are available for building the unit into custom enclosures or other relevant equipment (please note: the complete interface is then the responsibility of the OEM or end user). HRVS-DN Enclosure Type IP31 (NEMA1 equivalent) open view -1-

6 1. Overview HRVS-DN - Application Experience The applications for the HRVS-DN medium voltage soft starter are many. From starting motors with limited supply power (including diesel-generators), avoiding inrush current on loaded transformers, preventing over pressure & water hammer in pumping, soft starting and soft stopping general industrial equipment (conveyors, shredders, ball mills, etc) the list of possible uses is nearly endless. For more details on Solcon s application experience around the world see the applications technical notes on our web site at Examples of applications Pumps (fresh water, sewage, hollow shaft, oil, etc.) Fans and blowers Extruders Centrifuges Mixers Compressors (screw type, piston, centrifugal, turbo) Refrigeration compressors HVAC systems Crushers Ball Mills Conveyors Marine Main propulsion Thrusters Anchor winches Bilge pumps -2-

7 1. Overview How Soft Starters Work By using thyristors (SCRs) in a phase angle control mode, reduced voltage control can be achieved. Phase control makes it possible to gradually increase the motor terminal voltage from an initial set point up to the system supply voltage level. The related starting current and the starting torque can be optimally adjusted to the motor/load conditions. V L1-L3 M 3~ Basic diagram of HRVS-DN medium voltage soft starter Phase control of the line voltage using semiconductor (SCR) devices In addition, the Solcon HRVS-DN soft starters provide the soft stopping function as a standard feature. Similar to the reduced voltage start, upon a stop command the motor voltage is gradually decreased over time until the motor load stops. Abrupt stopping is avoided, a particular advantage in pumping applications to prevent the damaging effects of water hammer and on conveyor belts where the load may be damaged by an abrupt stop. Starting and Stopping Characteristics Initial voltage Determines motor s initial starting torque (the torque is directly proportional to the square of the voltage). Adjustable from 10 50% of nominal motor voltage VR (with option to extend to 80 % VR). This adjustment also determines the inrush current and mechanical shock. A setting which is too high may cause excessive initial mechanical shock and high inrush current (even if current limit is set low, as the initial voltage setting overrides current limit setting). A setting which is too low may result in prolonged start time before the motor shaft will begin to turn. Ideally, the motor shaft should slowly begin to turn immediately after a start signal is initiated. V R Initial voltage 50 % 10 % 0 time Current limit Determines highest allowable current during starting. Adjustable from % of nominal motor current IR (with option to extend to 500 % IR). I start V R V C.L 400 % current limit V Start 100 % 0 time RPM t soft start Too high a current limit setting will cause excessive current draw from the mains and faster acceleration. A setting which is too low may prevent the motor from completing the acceleration process and reaching full speed. In general this setting should be set to a value that is high enough to prevent the motor from stalling. Note: Current limit is not operational during run mode or during soft stop. -3-

8 1. Overview Acceleration (ramp-up time) Determines the motor s voltage ramp-up time, from initial votage setting to full voltage. Adjustable from 1-30 seconds (with option to extend to 90 sec). V R It is recommended that the acceleration ramp time be set to the minimum acceptable value (approx. 5 sec). Notes: - Since current limit overrides acceleration time, when current limit is set low starting time will be longer than the preset acceleration time. - When the motor reaches full speed before nominal voltage is reached, acceleration time setting is overridden and voltage ramps up quickly to full voltage. V Start voltage ramp-up time time [sec] Deceleration - soft stop (ramp-down time) Used for controlled deceleration of high friction loads. Determines motor s voltage ramp-down time. Adjustable from 1-30 seconds (with option to extend to 90 sec.) V R Notes: When soft starter is supplied with a by-pass contactor (standard): - soft stop initiation opens the end of acceleration contact, V Start - tripping opens the by-pass contactor. Load will then be transferred to the HRVS-DN and voltage begins ramping down deceleration time time [sec] Pulse start (kick start) Intended to start high friction loads requiring high starting torque for a short period of time. A pulse of 80% VR (without current limit) is initiated to break the load free. Pulse time is adjustable from seconds. V R 80 % After this pulse, the voltage ramps down to the initial voltage setting before ramping up again to full voltage based on the starting parameters settings. V Start Dual adjustment The HRVS-DN allows two start/stop characteristics for varying load applications (example: starting and stopping different motors or loads that vary due to changing ambient conditions). Dual adjustment parameters are: Special starting mode: Diesel generator supply* Initial voltage: % (80 %) VR Current limit: % of motor FLA setting Motor FLA: % starter Full Load Current (FLC) setting Acceleration time: 1-30 sec (with option to extend to 90 sec) Deceleration time: 1-30 sec (with option to extend to 90 sec) 0 voltage standard characteristic sec 1-30sec dual adjust characteristic time time *Diesel generator starting When starting from older Diesel generator sets (especially those equipped with low cost voltage regulators) both voltage and frequency are unstable causing irregular fi ring of the SCRs. The HRVS-DN is equipped with a special program which overcomes this voltage and frequency instability. -4-

9 1. Overview Pump control - Start curves Induction motors produce peak torque of up to 3 times the rated torque during the starting process. In some pump applications, this peak may cause high pressure in the pipes. Standard soft starters drastically reduce the starting torque however peak torque still remains high, causing high acceleration torque and rapid acceleration toward the end of starting process. Peak torque and acceleration torque must be reduced in order to extend the acceleration time. The HRVS-DN provides 6 different starting curves for voltage ramp-up to reduce peak torque and extend acceleration time: Curve 0: Basic curve for commissioning. Curve 1: Standard curve (default). The most stable and suitable curve for the motor; prevents prolonged starting time and motor overheating. Curves 2, 3, 4: During acceleration (before reaching peak torque) the pump control program automatically controls the voltage rampup, reducing peak torque. Curve 5: Torque curve By default, the process should always be started using curve 1. If toward end of acceleration the peak torque is considered to be too high (pressure is too high) starting curves 2, 3 or 4 can be selected instead. voltage area of pump control start curves torque DOL load speed with soft starter DOL time speed Pump control - Stop curves When stopping a pump motor using a starter that does not have the soft stop feature, motor torque will immediately fall below the load torque. This causes abrupt stalling creating the water hammer phenomenon which can be very damaging to the pump, the pipes, valves, etc. A soft starter with the Soft stop feature will smoothly decreases the motor speed to zero, eliminating this phenomenon. time The HRVS-DN incorporates 4 different stopping curves for special voltage ramp-down (decel control) preventing the motor from stalling and eliminating water hammer. The pump control stop curves can also be set so the fi nal torque stops the motor when the valve closes. Curve 1: Standard default curve. The voltage is linearly reduced from nominal to zero. Curves 2, 3, 4: According to the actual pump characteristic the soft stop behavior can be selected out of four preset curves. By default, always try using curve 1 fi rst. If the motor stalls quickly instead of slowly decreasing its speed, try stop curve 2. If this still is not satisfactory, try curves 3 or 4. voltage area of pump control stop curves torque DOL load speed time speed DOL time with soft starter -5-

10 2. Product Design Standard HRVS-DN Soft Starter Design The HRVS-DN soft starter is supplied in a standard IP31 (NEMA1 equivalent) enclosure ready to be installed and operated. Optional IP54 (NEMA3R/12) enclosure is available for harsh environmental conditions. The design includes: Digital soft starter, high-voltage and low-voltage compartment Switchgear, line and bypass vacuum contactors. Low voltage controls Optional RS485 communication is available (Modbus, Profi bus or others), allowing for: remote control (start, stop, etc.) remote supervision HRVS-DN Wiring and connections between: Power Module, EPT Receiver, Control module and Transformer Fiber Optic Harness (6 fibers) HRVS-DN Soft-Starter Power Module CT CT CT EPT - Tx Transmitter { { { I1 I2 I3 Electric Wire Harness (6 wires) Fiber-Optic links (2 fibers) EPT-Rx 11 Receiver 1 (R) 13 2 (S) White Male Connector Fiber-Optic Inputs HRVS-DN Soft-Starter Control Panel White Female Connector 3 (T) 11 24V Gnd Fuse inside Receptacle Cooper Wire Area - At least 4 mm VAC 115/230VAC 115V / 230V Segregated High Voltage Compartment Segregated Low Voltage Compartment Auxiliary Relay (Not Supplied) Basic diagram of HRVS-DN enclosed unit High voltage compartment The advanced digital fi ring system connects the low voltage control to the high voltage section via fi ber optics. A service-friendly design allows the individual phase modules to be changed (if required) in a minimal amount of time. The high-voltage compartment is fully segregated from the lowvoltage compartment for safe operation. L1 L2 M 3~ L3-6- Block diagram of digital medium voltage soft starter HRVS-DN (power section with 18 SCRs).

11 2. Product Design Low-voltage compartment The HRVS-DN has a separate, front accessible low voltage compartment mounted in the front door of the enclosure which includes the following components: Soft starter digital control module 2 miniature circuit breakers (6A) 1 selector switch soft starter off / bypass (DOL) 1 selector switch local / remote operation 8 interposing relays 2 pushbuttons start / stop 1 mushroom type emergency stop button 5 pilot lights: line contactor open (green), line contactor closed (white), by-pass contactor closed (white), fault (red) remote (white) Motor protection relay (optional) All control components in the LV-compartment are wired to a customer terminal strip. The low voltage compartment door can be opened without switching off the starter. Operator panel The HRVS-DN digital operator panel is easy to read, easy to navigate and easy to program. Critical parameters are factory preset but parameters can easily be changed via the user-friendly operator panel. Operator panel with LCD-display: - Two lines, 16 characters each, back light - Selectable languages: English, German, French, Spanish (Chinese and Russian optional) 8 LEDs for quick status display 6 keys, menu driven software, default parameters HRVS-DN Digital Operator Panel Located in isolated low voltage compartment HRVS-DN LCD display/keypad operator -7-

12 2. Product Design MV Chassis Kit Chassis type OEM kits are also available to qualifi ed integrators for use in customized enclosures and switchgear. Content of the chassis kit: 1. Control Module 2. Power Section & Fiber Optic Wire Harness 3. 24VAC Control Transformer Power Section Control Module Transformer to 24VAC Electronic P/T Receiver HRVS-DN Custom Line Up using OEM kit -8-

13 2. Product Design Custom Lineups and Special Designs Solcon is well known for their ability to provide unique technical solutions to the most challenging application requirements. These include custom linueps, synchronous motor starters and multi-motor starting... just to name a few. And, Solcon is the only company in the world who can offer a medium voltage soft starter for use in explosive environments. With ratings from 2.3 kv to 15kV and up to 2500A, Solcon can provide the medium voltage soft starter designed to meet your specifi c application needs. Explosion proof HRVS-DN medium voltage soft starter with EEx-D[ia]I Synchronous HRVS-DN medium voltage soft starter with excitation controller Multi-start system HRVS-DN with built in PLC control for sequential soft starting and stopping up to fi ve MV motors 10-15kV HRVS-DN medium voltage soft starters rated up to 2700A -9-

14 3. Specifications General Specifications Power components Uniquely ordered and specially matched sets of thyristors (SCRs) Converter circuit arrangement Three-phase AC voltage controller according to IEC 146 Controller System voltages Current ratings Fully digital with 32 Bit-Processor System frequency 50/60Hz, 3% 2.3 kv, 3.3 kv, 4.16 kv, 6.0 kv, 6.6 kv, 10KV, 11KV, 13.2KV, 13.8KV and 15KV A System voltage tolerance +10 %, -15 % Auxiliary power supply (control voltage) Electrical isolation between power section and Control and feedback signals Degree of protection Cooling method Complied standards Paint finish 1-ph V AC, 50/60 Hz (std) 1-ph V AC, 50/60 Hz 110 V DC 35 VA running, 350 VA starting Fiber optics IP00 (Chassis/OEM Kit) IP31 (NEMA1) standard IP54 (NEMA3R/12) optional Air Cooling / Forced Air Cooling IEC, EN, NEMA, UL/CUL, CSA, IEEE RAL 7032, others upon request The HRVS-DN is designed to operate under the following conditions: Max. starting current Max. starting time Max. number of starts Ambient temperature: Installation altitude Maximum relative humidity operating transportion storage 400 % of the motor s Full Load Ampere (FLA) 30 sec, at 400 % FLA 4 starts at max. conditions (400 % I R for 30 sec at 40 C) (higher number of starts per hour based on the application) 0to+40 C,max.60 C,de-ratingby10%foreach5 Cabove40 C -10 to + 50 C -25to+70 C Max. 1000m above sea level, for higher altitudes de-rating required (see figures below) 95 %, non-condensing Current reduction factor k H Installation altitude in m above sea level Current reduction factor k H as a function of the installation altitude Voltage reduction factor k U according to VDE 0110 / IEC Installation altitude in m above sea level Voltage reduction factor k U as a function of the installation altitude -10-

15 3. Specifications Motor and Starter Protection Name / Description Adjustments Active protection at: Start Run Soft Stop Stop Too many starts Prevents excessive starts during a set time period - permitted number of starts: start period: 1-60 min - start inhibit time: 1-60 min (after too many starts) Long start time Prevents stall condition, trips the starter if current does not drop to a fixed level within selected time. - adjustable time: 1-30 sec Over current shear-pin Trips the starter in less than 1 cycle when current exceeds 850 % I FLC. Shear-pin ( immediate relay set to Shear-pin ) - Stops (n/o trip) the motor when current exceeds the set level after preset time delay Motor overload Inverse time electronic overload becomes operational when RUN LED is lit. The O/L circuitry incorporates a thermal memory register calculating heating minus dissipation of the motor. The starter trips when the register fills up. The thermal register resets itself 15 minutes after the motor stops. Under current Trips the starter when current falls below the U/C Trip level after preset time delay. Under current auto reset allows for restarting after a predefined period of time to re-check the under current status. Under / no voltage Trips the starter when voltage drops below the U/V trip level after the preset selectable time delay. With programmable auto-reset. Over voltage Trips the starter when voltage increases above the O/V trip level after the preset time delay. - trip current: % Motor FLC (during starting 850 %) - shear-pin delay: sec (no delay at 850 %) - motor FLA between: % and factory set at 115 % - tripping time at 500 % FLA is adjustable between 1-10 seconds allowing trip curve selection. - trip current: Off, % I FLA - trip delay: 2-40 sec - trip level: % U N - trip delay: 1-10 sec The starter will trip immediately, overriding the time delay if voltage drops to zero - trip level: % - trip delay: 1-10 sec Phase loss Trips the starter when one or two phases are missing for over 1 sec. (programmable auto reset) Phase sequence Trips the starter immediately when phase sequence is wrong. Wrong connection / shorted SCR Trips the starter if: - motor is not properly connected to starters load terminals - internal disconnect in the motor winding is detected - one or more SCRs are shorted - fiber optic lead insertion is incorrect Heat sink over temperature Thermal sensors are mounted on the heat sink and trip the starter when temperature rises above 85 C External fault 1 & 2 Inputs from two NO contacts. The starter trips 2 sec after either of the contactors close Unbalance Current Operational after start signal, trips the starter when current unbalance exceeds the preset UNBALANCE TRIP setting for more than UNBALANCE DLY time setting Range: %, delay: 1-60 sec. Ground fault current Operational after start signal, trips the starter when ground current exceeds the preset GND FAULT TRIP for more than GND FAULT DLY time Range: %, delay: 1-60 sec. Power on & no start Operational upon mains voltage connection. Trips the motor when mains is connected to the HRVS-DN for more than 30 sec without a start signal. Bypass Open Operational when the bypass contactor does not close after end of acceleration contact signaled the interposing (pilot) relay to close is active - is not applicable or inactive -11-

16 4. Product Selection Selection and Ordering Data HRVS-DN Series Order No. Example: HRVS-DN HRVS-DN S IP00 Type 0 Chassis-type: Degree of protection IP00 1 Cabinet-type: Degree of protection IP31 (NEMA 1 equivalent) Other types available: IP54 (NEMA3R/12 equivalent) and others Nominal current 2.3 kv / 3.3 kv / 4.16 kv 6.0 kv / 6.6 kv 60 A 70 A 110 A 140 A 200 A 250 A 320 A 300 A 400 A 400 A 600 A 500 A up to 2700 A up to 2700 A Nominal voltage 2300 V 6000 V V 3300 V 6600 V V 4160 V V V Control voltage supply 115 VAC Standard 230 VAC Optional 110 VDC Optional 125 VDC Optional 220 VDC Optional 240 VDC Optional Options The soft starter can be equipped with a variety of options and are indicated as a supplementary code (See page 13) -12-

17 4. Product Selection Standard Scope of Supply Control input voltage 115VAC Analog outputs Optional Analog output card option Input / output cable entry Top or bottom entry Standard on all enclosed units Door opening Main isolation switch Main fuses Hinge on left side, right hand side opening Class E2 starter version Class E2 starter version Alternative for left to right opening available, applied to enclosed units only Line contactor Fixed, vacuum Standard, option for VCB at higher ratings Bypass contactor Fixed, vacuum Standard, option for VCB at higher ratings Motor protection relay Optional MPS3000 or other models available depending on application requirements Digital panel meter Optional Standard, 240VAC or VDC optional Standard, option for VCB at higher ratings Standard Space heater Optional Standard in IP54 (NEMA3R/12 equivalent) enclosed units, thermostat controlled Cooling fan Optional Available Options Here are just a few of the many options and accessories available from Solcon. Contact us for your specifi c application requirements. Code Name / Description Comment Electrical options 3M RS-485 communication with MODBUS No bridge required 3P RS-485 communication with PROFIBUS No bridge required Relay Relay card for start/stop control via communications Fan Fan on top, air entry at bottom with filter and circuit breaker For excessive starts per hour requirements 5 Analog output module MPS3000 Motor protection relay with 10 PT100 inputs V test voltage for LV-motor test * V test voltage for LV-motor test * V test voltage for LV-motor test * V test voltage for LV-motor test * * Complete functional test of the soft starter can be carried out using a small LV motor (3 to 10 kw). Mechanical options -13- Thick paint TIN IP32-67 M Multistart Special painting, extra thick Tin-plated copper bus bars Degree of protection, enclosure options Suitable for marine applications For multi-motor applications Spare part packages Spares - 1year Spares - 2years Spare parts package 1 Spare part package 2 Specify mil thickness and paint color NEMA12 - NEMA4X available Contact factory for details Includes: 1 - Phase power section module 1 - Digital controller module 1 - Vacuum contactor 1 - Current transformer 1 - Electronic PT (Tx and Rx) 1 - Firing power supply board Includes: 2 - Phase power section modules 1 - Digital controller module 1 - Vacuum contactor 1 - Current transformer 2 - Electronic PT (Tx and Rx) 1 - Firing power supply board

18 4. Product Selection Application Information To select the right soft starter, generally only the motor nominal voltage and motor full load current (FLA) need to be known. However, when sizing HRVS-DN soft starters for special applications, environments or starting conditions, the following information should be provided before ordering: 1. General data required for standard soft starter applications: 1.1 Type of application (Pump, Compressor, Conveyor, etc.) 1.2 Motor Rated Power (KW or HP) 1.3 Motor Full Load Current (FLA) 1.4 Motor Nominal Voltage (V) 1.5 Motor Synchronous speed (RPM) 1.6 Motor current vs. speed curve or Ist/In (% or Per Unit) 1.7 Motor speed/torque curve 1.8 Tmax/Tn (% or Per Unit) 1.9 Rotor inertia J=GD2/4 (Kgm2) 1.10 Load speed/torque curve (% or per unit) 1.11 Load inertia J=GD2/4 (Kgm2) at motor speed 1.12 Number of starts per hour and time between starts 1.13 Cabinet degree of protection (1PXX or NEMA requirement) 1.14 Ambient temperature 1.15 Altitude (Meters or feet Above Sea Level) 1.16 Power cables entry (Top or Bottom) 1.17 Max. Shipping split dimensions (WXHXD) 2. Data to be requested for soft starters requiring synchronous motor exciters: 2.1 Type of exciter (Rotating or Static) 2.2 Full nameplate data of motor and exciter 2.3 Is it new or refurbished motor 2.4 Data for existing/old excitation system 2.5 For rotating exciter DC voltage, DC current of the exciter generator fi eld 2.6 For static exciter DC voltage, DC current of motor fi eld 2.7 For static exciter full data of fi eld starting/discharge resistor 2.8 If retrofi t application, will the existing static exciter fi eld starting/discharge resistor be used? If not, will customer supply or is this in Solcon s scope of supply? 2.9 Availability of LV 3 phase supply KVA required: 250V X IDC X 3 phasex 1.3. Advise voltage and frequency Note: - A soft starter operated motor cannot deliver more torque than that of the motor started direct on line. -14-

19 4. Product Selection Standard Ratings, Dimensions for IP00/Chassis and Enclosed Units The starter must be selected based on the motor s Full Load Ampere (FLA) as indicated on its nameplate (even if the motor is not fully loaded). The kw and HP ratings given in the following selection table are related to standard motors and are for reference only. Note: Weights do not include the disconnect and fuses. Contact Solcon USA for actual weight and dimensions of Class E2 starters. -15-

20 5. FAQs Question Can an HRVS-DN soft starter be used to start a heavyduty load or a load with a high moment of inertia if the motor will not start direct-on-line (DOL)? Can an HRVS-DN soft starter be connected to the medium-voltage bus without using a load breaker? Can an HRVS-DN soft-starter also be used to start synchronous motors? Is the HRVS-DN soft-starter available in an explosionproof version? Can the HRVS-DN soft-starter be used to start several different motors or can one HRVS-DN soft starter be used to start more than one motor? When is a tachometer (shaft encoder) required to be used with the HRVS-DN soft-starter? Can the HRVS-DN soft-starter be used for braking? Is the HRVS-DN soft-starter also available in an outdoor versions? Is the HRVS-DN soft-starter designed to meet industry sector-specific and local standards Is it possible to use HRVS-DN soft-starters on synchronous or slip ring motors? Can you use the HRVS-DN soft starter with any manufacturer s motor? Can HRVS-DN soft starters operate at high altitudes (i.e. locations 4000m above sea level)? Can the HRVS-DN soft-starter be operated with supply voltages which are not listed in the table (intermediate values)? Can an HRVS-DN soft starter be operated into a step-up transformer? Does an HRVS-DN soft-starter generate harmonics which are fed back into the supply? Answer Yes But we need certain data to calculate the minimal starting conditions. Contact technical support for assistance. Yes The HRVS-DN can be provided without a load break switch (with inline and bypass contactors only). A fused load-break disconnect switch at the medium-voltage feeder is sufficient. The fuses are only used as cable protection and protection against catastrophic failure. The motor protection relay is usually included in the circuit breaker or the soft-starter can be equipped with a comprehensive motor protection relay (MPS3000 or equivalent) If an existing circuit-breaker is used, this can remain closed or switches in the no-current condition (exception: under fault conditions) Yes A non-excited synchronous motor behaves essentially the same as a squirrel-cage induction motor. If the motor has reached the rated speed in a non-excited condition (rated slip in induction motor operation), the excitation system (which can be supplied by Solcon) is switched-in and the motor then pulls into synchronized. mode Yes with certification (EEx-D)[ia]I Solcon is the only MV soft starter manufacturer in the world to offer this certification. Yes Two parameter settings can be programmed using the "Dual Adjustment" function. This means that two different motor types can be started. However, there may be little difference in the actual motor output. Several identical motors can be started. However, due to the higher thermal load, a larger soft-starter (always equipped with a fan), must be used. One (or several) additional cabinets with vacuum contactors can be provided for sequential starting of multiple motors. A tachometer is generally not required for standard applications, only for special cases: Soft stopping with shutdown (power-off) at a specific speed Starting and/or stopping with an adjustable speed profile If it has to be accurately determined when the motor has reached full speed YES Yes to NEMA 3R (IP67) YES IEC, NEMA UL / CUL in process DNV and ABS or similar upon request Yes Unless the slip ring motor was originally specified due to especially high starting torque requirements. Under these circumstances, a soft-starter cannot be used! Yes In especially critical cases, increased pulsating torques can be observed with some motor designs. The non-sinusoidal current and voltage waveform of the soft starter does not represent a risk. Yes But the nominal voltage and current have to be reduced based on the derating table (please refer to page 10) and the starting frequency (number of starts per unit time) may need to. be reduced Yes In this case, the next higher voltage class should be selected, and the actual supply voltage specified when ordering. Yes But why should a step-up transformer be used when Solcon offers the HRVS-DN in ratingsupto15kv? Yes But only for a very brief period of time until the bypass contactor closes (low level harmonies only) -16-

21 6. Wiring diagrams and dimensional drawings Wiring diagram 1~230VAC e2 2 Control 6A e LS A e2 1 ES RC1 22 ES2 (Customer) FT 3 C ~230V 1 N~230V ~230VAC 14 RC K Space Heater 14 RS FT K C MPR 10 Trip RS H 60W 3 HS 1 HS H 60W K2 21 Remarks: -Customer Terminals-TB2,TB3 -TB1, -TB4-Internal Terminals B.P. Start 12 D.O.L. Soft Starter 14 FR TR1 * 19/1 TB1 TB2 RC K1 C2 FT/1 LS1 Aux Immediate By-pass Trip Contactor 2x120 Pri. 24Vac Sec. Power Module 34 RS FT 31 Door Switch -Stop 15 1NC Start 1NO L R x1 x1 x1 x1 x1 LR1 L1 L2 L3 L4 x2 x2 x2 x2 x2 2 Red Green Green Red N~ Light Line Fault 230VAC Line Contactor On Contactor By-pass Off Contactor On A1 A1 A1 A1 RC1 C1 FT FT/1 A2 A2 A A2 3P Line contactor 3P 3P A1 C2 A2 2 By-pass Contactor 2 A1 FR A2 10 3P A1 A1 A1 K1 K3 K2 A2 A2 A Immediate Fault End 0f Acceleration x1 L5 x2 White Remote 2 A1 RS A2 10 3P Note: Current is continuously monitored even when the bypass contactor is closed. Block diagram Control Module Molex Plug EPT Receiver (Rx) X6 Fiber optic Firing Trans.. / 24V Fiber optic Power Supply Firing Control Feedback Sensor L 1 C/T L 2 EPT Transmiter (Tx) M L 3 Line Contactor By-pass Contactor -17-

22 ON 6. Wiring Diagrams and Dimensional Drawings Dimensional drawings Typical Enclosed unit IP31/ / 3.3 / 4.16 kv up to 400 A (ALL IN ONE DESIGN) A B SOLCON 245mm 9.6" 440mm 17.3" On Safety Wall (Epoxy Glass) Off OFF Line Contactor Ground Bus By Pass Contactor 2500mm 98.4" 1220mm 48" 1670mm 65.7" C.T Soft Starter Outgoing to Motor Incoming From Feeder 75mm 3" 700mm 27.6" 220mm 8.7" 215mm 215mm 8.5" 8.5" Bus Bar Ground 50x6mm 1100mm 43.3" A B BASE TOP O 22mm 0.9" 900mm 35.4" 100mm 3.9" 1020mm 40" 100mm 3.9" L1, L2, L3 CABLES U, V, W CABLES 740mm 29.1" 320mm 12.6" 1100mm 43.3" 665mm 26.2" Plastic Bolt Steel bolts 730mm 28.7" 1100mm 43.3" 1100mm 43.3" Notes: Front 1. Dimensions are shown in mm and inches. 2. Dimensions are for reference only and are subject to change. Contact Solcon USA for exact dimensions Front

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24 SOLCON USA 1355 Pinellas Bayway, Suite #17 Tierra Verde, Florida USA Tel: Fax: sales@solconusa.com www: solconusa.com Service and support in more than 75 countries USA Tech Support Hotline: or support@solconusa.com / V1.7 USA